Machine for making corrugated paper-board.



F. G. FEELEY' MACHINE FOR MAKING CORRUGATED PAPER BOARD.

APPLICATION men 020.7.1915.

1 ,Q6%U% 1, m Patented Apr. 23, 1918.

2 SHEETSSHEET 1.

F. G. -EELEY.

MACHINE FOR MAKING CORRUGATED PAPER BOARD.

APPLICATION FILED 050.1.1915.

1 Q6%@% 1 Patented Apr. 23, 1918.

2 SHEETSSHEET Z.

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. To allaohom it may concern:

Be itknown that l, FRANK Fnnnnna citizen of the United,States,;and.resident of Chicago, inthe county of Cook and State ofIllinois, have invented certainnew and useful Improvements in Machinesfor Making Corrugated Paper-Board, of-which'the following is aspecification.

This invention relates to machines for manufacturing corrugated paperand like material, and more particularly to machines forlining thecorrugated paper. In such a machine it has been proposed, as disclosedin the pending application of Edgar M. Hawkins, Serial No. 69,093 filedDe celnber 28,1915; tQtransfer the paper corrugated by a pa1r ofcorrugat ng rolls to a corrugated or toothed rotary drum on which thecorrugated paper is held while adhesive isapplied to the same and while:a liner is applied to the adhesive-coated corrugated paper.

It is the object of the presentinvention to so construct or form theteeth on the drum that the adhesive applying mechanism willnot applyadhesivetothe drum teeth when no corrugated paper is present thereon, orwhen holes, or openings occur in the corrugated paper. i a

As disclosed butnot claimed in the pending application above referredto, this is accomplished by ,providingthe drum with so-calledstub-teeth, or, in other words, teeth which are of less height than thecorrugations of the corrugated paper. The adhesive-applying mechanism isso positioned as to supply the ridges of the corrus gations ofthecorrugated paper with'ad hesive and the extremities of the drum teethare, therefore spaced from the surface of the adhesive applying member.This spacing is sufficient to prevent adhesive from being applied to thedrum; teeth whentears or other openings occur in the corrugated paper,or when no corrugated paper 1s pres ent, on the drum.

The invention is illustrated in the accompanying drawing, in whichFigure 1 1savertical section through a corrugatirg and l1ning machine,,showlng the disposition of the drum, eorrugating rolls andadhesive-applying mechanism;

Fig. 2 is a s'ect1onal-deta1l view showing a portion of the drum andadjacent corrugating roll and illustrating the relation between theteeth of the corru atin rolls and rugated paperis transferred fromthecorrugating rolls to the durm; and.

Fig.3 is a vertical section onan enlarged scale showing a portionof-thedrurn, the corrugatingrolls and the adhesive-applying mechanismand illustrating the remnantstween the teeth of the drum and the.adhesive-applying roll of the adhesive-apply 1ng mechanism.

Specification of Letters Patent. 7 Pafipgntgfl 23, 191:8;

' the drum, and the manner in which the cor- Fig. 1 shows only so muchof the complete corrugating and lining 'inachine disclosed in the abovesnentioned application as willgive a correct understanding of the presentinvention. Referring particularly to Fig. 1, it will. be seen thatthedruin hereinbefore referred to is indicated at A, and that thecorrugatingrolls are denoted generally by the reference character B. Thepurpose of the rolls B is to corrugate a web of paper or other materiala and to transfer it to the surface of the drum A. .lVhile the corrugated'web is being carried by the drum A, the adhesiveapplyingmechanism, desig' nated generally by C, applies adhesiveto the ridges ofthe corrugations on the corrugated paper, thereby placing the same incondition to receive a liner Z) conducted to the surface ofthe drum bymeans of the guide rollers D. The web I) is first passed over apreheating device E, but as the construction of this preheating deviceforms no part of the present invention, the same will not be hereindescribed. 7

The drum A carriesthe lined corrugated paper through substantially 270to a transfer roll F,-which serves to remove the lined corrugated paperfrom the surface of the drum and directthe same over a heating bed,shown in part at G. Variousother parts enter into, the construction ofthe complete machine, butthe present invention relates particularly tothe construction of the teeth on the drum A andthe relation between suchteeth and the teeth on the corrugating rolls or the corrugations on thepaper formed bysuch teeth. 7

Figs. 2 and 3 show this, relation, from which it will be noted that theteeth 1 on the corrugating rolls B are full sizeteeth and formcorrugations in the web a of predetermined height, but that the teeth 2on the surface of the drum A are reduced in length and constituteso-called stub-teeth.

When the corrugated web a is transferred to the surface of the drum Afrom the adjacent corrugating roll, the ridges of the corrugafingers,such as 3, extending into circumferential grooves orv channels in saidroll, and is thenengaged-by the guide 4. and held thereby in thecorrugations of the inner roller 22 until carried by the latter to apoint between it and the drum A. Therea after, the filler, in itscontinued feeding movement, is transferred from said inner roll 22 tothe surface of the drum by the stripper fingers 3 and guide a, the saidfingers extending into circumferential grooves or channels in said rollas shown.

The adhesive-applying mechanism 0 comprises an adhesive pan 6, adistributing roll 7, and an adhesive-applying roll 8. Theadhesive-applying roll 8 is journaled in a casting 9, which is mountedto slide upon a bracket 10 secured to a suitable part of the frame ofthe machine. The roll 7 is mounted in sliding bearings 11 which aremountedto slide on the casting 9. By this means, both rolls 7 and 8 maybe unitarily adjusted toward and away from the drum A by sliding thecasting 9 on the bracket 10. This is accomplished by means of a link 12pivoted to a rock arm 13, which is mounted to oscillate about the axisof a shaft 14:. A hand lever 15 serves to shift the rock arm 13, andhence move the rolls 7 and 8 into and out of their operative position.The inward movement of the rolls 7 and 8, and hence the relation betweenthe roll 8 and the ridges of the corrugations on the web is determinedby the length of the link 12 and the arm 13. The length of these partsmay be varied by the insertion or removal of one or more washers 16capable of being inserted between a swivel block 17 pivoted to the rockarm 13 and an adjacent shoulder on the link 12, as shown. The inwardmovement of the adhesive-applying roll 8 is, therefore, positivelylimited and the distance between the adhesive-applying roll and theextremity of the drum teeth may be adjusted.

The distributing roll 7 may be adjusted with respect to theadhesive-applying roll 8 by means of the thumb-wheels 19, which, whenturned, slide the bearings 11 on the casting 9 to vary the space betweenthe rolls 7 and 8. The adjustment of the roll 7, as well as the featureof dropping the adhesive pan 6 away from the rolls by manipulating ahand lever 20, have no bearing upon the present invention and will notbe described in greater detail.

It will be noted that the adhesive-applying roll 8 is so adjusted thatits surface comes in contact with the ridges of the corrugations on thecorrugated web, and, therefore, applies adhesive to the ridges of suchcorrugations. The tops of the drum teeth, however, being of less heightthan the corrugations of the web are spaced from the surface of the roll8 and will not receive any of the adhesive either when the corrugatedweb does not intervene between the roll 8 and the drum, or when tears oropenings occur in the web. If the teeth on the drum were made of thesame height as the corrugations on the web, such tears or openings inthe web would permit adhesive to be a pplied through such openings on tothe surface of the drum, which, of course, is objectionable.

The liner Z) is brought into contact with the adhesive-coated corrugatedpaper by means of the rolls D. The liner, in pass ing around the drum Awith the corrugated paper, is pressed against the same and adheresthereto and the lined corrugated paper then passes over the transferroll F to the heating pan G where the adhesive is dried.

It will, therefore be noted from the above description that the novelformation of the teeth on the drying drum and the relation between suchteeth, the teeth of the corrugating rolls, and the height of thecorrugations of the web, renders it possible to apply adhesive to theridges of the corrugations on the web without danger of the drumreceiving any of the adhesive when a portion of the web does notintervene between the surface of the drum and the surface of theadhesive-applying roll. The shortening of the teeth on the drum does notinterfere with the proper accommodation of the web corrugations in therecesses between the teeth of the drum, and the function of the teeth ofthe drum, 2'. 0., maintaining the web corrugations in spaced relationuntil secured by the liner adhesively applied thereto, is performed justas efiiciently by the stub teeth as if the teeth of the drum were ofsufficient size to entirely fill the corrugations of the web.

It is obvious that the present invention is applicable to all machineshaving corrugating means and a receiving member for receiving thecorrugated material, irrespective of whether the corrugating meanscomprises rolls or whether the receiving member is a drum, as in thepresent instance. The teeth 2 might be formed on any kind of receivingmember and the corrugating might be done on toothed members other thanthe rolls B herein disclosed.

'What I claim is g V 1. In a corrugatingmachine, the combination ofcorrugating rolls, a' toothed, drum to receive the material corrugatedbysaid rolls, and means for applying adhesive to the ridges of thecorrugations of saidlmaterial While the latter is being carried by saiddrum, the teeth on said drum being of less 7 height than thecorrugations of the material corrugated by said rolls.

2. In a corrugating machine, the combination of toothed oorrugatingrolls, a toothed drum' to receive the material corrugated by said rolls,and means for applying adhesive to the ridges of the corrugations ofsaid material while theilatter is being carried by said drum, the teethon said drum being of less height than the teeth of the corrugatingrolls, for the purpose described.

. 3. In a corrugating machine, the combination of toothed corrugatingmeans, a toothed receiving member for receiving the material. corrugatedby said means, and means for applying adhesive to the ridges of thecorrugations of said material while the latter is being carried bysaidmember the teeth on said member being ot less height than the teeth onsaid corrugatingmeans, for the purpose described' 4;. In a corrugatingz;machine, thecombination 0t toothed corrugating means, a

toothed receiving member for receiving the material, corrugatg-id bysaid means, and means for applying adhesive tothe rldges oi thecorrugations of said material while the latter is being car-red by saidmember, the

teeth on said member than the corrugations ru gated by said means.

In a corr'ugating nation of corrugating means, a toothed receivingmember for receiving the material corrugated by said means, andadhesiveapplying means for applying adhesive to the ridges ofthe'corrugations of thecorrugated material while the latter is beingcarri ed by said member, the teeth of said member being 01 less heightthan the corrugations of said material so that no adhesive will beapplied to such teeth by the adhesive-applying mechanism.

6. in a corrugating machine, the combina-, tion of corrugating means, atoothed receiving member for receiving the material corrugated by saidmeans, adhesive-applying mechanism comprising an adhesive-applying rollfor supplying the ridges of the corrugated material with adhesive whilesaid material is carried by said member, and means to adjust saidadhesi'veapplying roll toward and away from the drum, the teeth on saidmemberbeing of less height than the corrugations .on the corrugatedmaterial, for the purpose described. 7

7. In a corrugating machine, the combibeing of less height on thematerlal cornation of .corrugat-ing rolls and a toothed drum to receivethefmaterial corrugated by said rolls, the teeth on-said drum being ofless'height than the corrugations on the material corrugated by. saidrolls, and. adhesiveapplying mechanism comprising an adhesive-applyingroll'positioned to apply adhesire to the ridges of the corrugations ofless height than 'the corrugations on the material corrugated by saidrolls, and adhesive-applying mechanism comprising an adhesive-apply1ugroll positioned to apply [adhesive to the ridges of thecorrugations ofsaid material while the material is being carried by said drum, saidadhesive-applying roll being adjustable toward and away from said drum,for the purpose described. 9. In a machine of the character described,the combination of toothed corrugating rolls, a corrugated carryingrollhavingribs of less depth than the teeth of said corrugating rolls,and means for applying paste to crowns "of material corrugated by saidcorrugating rolls and passing over said carrying roll.

1OJIn a machine of the character described, the combination of means forcorrugating sheeted material, a carrying roll having corrugationsadapted for holding the corrugations of said material substantially topitch, the corrugations of said roll being less in depth than thecorrugations of said p material, and means for applying an adhemachine,the comb1- sive and backing to the crowns of the corrugations of saidmaterial while engaged by said roll. i

11. In a machine of the character described, means for formingcorrugations in sheeted material, mechanism for applying adhesive tocrowns of corrugations formed in material by said-means, and means forsupporting the bases of said corrugations while leavmg the crownsthereof free during the application of adhesive thereto.

12. A corrugated paper making machine comprising a pair. of opposedrolls having corrugated peripheries between which a paper sheet isadapted to be impressed, a third roll provided with a peripheryfashioned with corrugations of lesser projection than the corrugatedpaper sheet issuing from between saidfirst mentioned rolls, a gluedabbing device mounted for movement with a predetermined limit towardsaid third roll and means for moving said device toward or away fromsuchlimit.

13. A corrugated paper making machine comprising a pair of opposed rollshaving corrugated v peripheries between which a paper sheet is adaptedto be impressed, a

; ward said roll, the arrangement being such as to permit of dabbingcontact only with the elevated portions of the passing sheet, and meansfor controlling the supply of glue upon said device.

'14. A corrugated paper making machine comprising a pair of opposedrolls having corrugated peripheries between which a paper sheet isadapted to be impressed, at third roll having its periphery fashionedwith shorter corrugations and positioned beyond with reference to thecourse of travel of such sheet, a glue dabber arranged along said thirdroll and out of contact with such shorter corrugations thereof, for thepurpose specified.

15. A corrugated paper making machine comprising a pair of opposedcorrugated impressing rolls between which a paper sheet is adapted topass, a third roll located beyond the point of delivery from, and havingcorrugations fitted to but of lesser height than those of, the firstmentioned rolls, and a glue dabbcr adjacent said third roll andprojecting between the tangential planes of the passing outermostportions of said sheet and third roll corrugations respectively wherebyto contact the former but not the latter.

16. In a machine of the character described, meshing corrugatingrollershaving channels therein, a carrying roller meshing with one of saidcorrugating rollers, said carrying roller having ribs of less depth thanthose of the roller with which t meshes, means extending into channelsof said corrugating rollers for stripping mate rial therefrom andguiding said material to a succeeding roller, a roller for applying anadhesive to crowns of said material as it passes over said carryingroller, and a roller for applying a backing to said crowns as thematerial passes over said carrying roller from said roller for applyingadhesive.

Signed at Chicago, in the county of Cook, and State of Illinois, this4th day of December, A. D. 1915.

FRANK G. FEELE Y.

Witnesses R. C. GULLEN, D. MEYER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

